The role of YAP transcription coactivator in regulating stem cell self-renewal and differentiation
Ian Lian,Joungmok Kim,Hideki Okazawa,Jiagang Zhao,Bin Zhao,Jindan Yu,Arul M. Chinnaiyan,Mason A. Israel,Lawrence S.B. Goldstein,Ramzey Abujarour,Sheng Ding,Kun-Liang Guan +11 more
TLDR
It is reported that YAP is inactivated during embryonic stem (ES) cell differentiation, as indicated by decreased protein levels and increased phosphorylation, which establishes a critical role of YAP in maintaining stem cell pluripotency.Abstract:
Yes-associated protein (YAP) is a potent transcription coactivator acting via binding to the TEAD transcription factor, and plays a critical role in organ size regulation. YAP is phosphorylated and inhibited by the Lats kinase, a key component of the Hippo tumor suppressor pathway. Elevated YAP protein levels and gene amplification have been implicated in human cancer. In this study, we report that YAP is inactivated during embryonic stem (ES) cell differentiation, as indicated by decreased protein levels and increased phosphorylation. Consistently, YAP is elevated during induced pluripotent stem (iPS) cell reprogramming. YAP knockdown leads to a loss of ES cell pluripotency, while ectopic expression of YAP prevents ES cell differentiation in vitro and maintains stem cell phenotypes even under differentiation conditions. Moreover, YAP binds directly to promoters of a large number of genes known to be important for stem cells and stimulates their expression. Our observations establish a critical role of YAP in maintaining stem cell pluripotency.read more
Citations
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Hippo Pathway in Organ Size Control, Tissue Homeostasis, and Cancer.
TL;DR: The Hippo pathway regulates cell proliferation, apoptosis, and stemness in response to a wide range of extracellular and intracellular signals, including cell-cell contact, cell polarity, mechanical cues, ligands of G-protein-coupled receptors, and cellular energy status.
Journal ArticleDOI
The Hippo pathway and human cancer
TL;DR: The evidence for the Hippo pathway as a cancer signalling network is appraised, and potential mechanisms by which Hippo pathways activity is altered in cancer and emerging therapeutic strategies are discussed.
Journal ArticleDOI
The Biology of YAP/TAZ: Hippo Signaling and Beyond
TL;DR: YAP/TAZ appear at the centerpiece of a signaling nexus by which cells take control of their behavior according to their own shape, spatial location and growth factor context, and are appealing therapeutic targets in cancer and regenerative medicine.
Journal ArticleDOI
Mechanisms of Hippo pathway regulation
TL;DR: This review focuses on recent developments in the understanding of the molecular actions of the core Hippo kinase cascade and discusses key open questions in the regulation and function of the Hippo pathway.
Journal ArticleDOI
The Hippo pathway: regulators and regulations
Fa-Xing Yu,Kun-Liang Guan +1 more
TL;DR: Regulatory mechanisms of the Hippo pathway are reviewed and potential implications involved in different physiological and pathological conditions are discussed.
References
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Induction of pluripotent stem cells from mouse embryonic and adult fibroblast cultures by defined factors.
TL;DR: Induction of pluripotent stem cells from mouse embryonic or adult fibroblasts by introducing four factors, Oct3/4, Sox2, c-Myc, and Klf4, under ES cell culture conditions is demonstrated and iPS cells, designated iPS, exhibit the morphology and growth properties of ES cells and express ES cell marker genes.
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Induction of Pluripotent Stem Cells from Adult Human Fibroblasts by Defined Factors
Kazutoshi Takahashi,Koji Tanabe,Mari Ohnuki,Megumi Narita,Tomoko Ichisaka,Kiichiro Tomoda,Shinya Yamanaka +6 more
TL;DR: It is demonstrated that iPS cells can be generated from adult human fibroblasts with the same four factors: Oct3/4, Sox2, Klf4, and c-Myc.
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A Bivalent Chromatin Structure Marks Key Developmental Genes in Embryonic Stem Cells
Bradley E. Bernstein,Tarjei S. Mikkelsen,Tarjei S. Mikkelsen,Xiaohui Xie,Michael Kamal,Dana J. Huebert,James Cuff,Ben Fry,Alexander Meissner,Marius Wernig,Kathrin Plath,Rudolf Jaenisch,Alexandre Wagschal,Robert Feil,Stuart L. Schreiber,Stuart L. Schreiber,Eric S. Lander,Eric S. Lander +17 more
TL;DR: It is proposed that bivalent domains silence developmental genes in ES cells while keeping them poised for activation, highlighting the importance of DNA sequence in defining the initial epigenetic landscape and suggesting a novel chromatin-based mechanism for maintaining pluripotency.
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Generation of germline-competent induced pluripotent stem cells
TL;DR: iPS cells competent for germline chimaeras can be obtained from fibroblasts, but retroviral introduction of c-Myc should be avoided for clinical application.
Journal ArticleDOI
Induction of Pluripotent Stem Cells From Adult Human Fibroblasts by Defined Factors
Kazutoshi Takahashi,Koji Tanabe,Mari Ohnuki,Megumi Narita,Tomoko Ichisaka,Kiichiro Tomoda,Shinya Yamanaka +6 more
TL;DR: This work generated induced pluripotent stem cells capable of germline transmission from murine somatic cells by transd, and demonstrated the ability of these cells to reprogram into patient-specific and disease-specific stem cells.